Obscuration Exercises
![4 panel image with different types of obscurations.](media/graphics/bridge22.jpg)
Look at these images and decide which obscuration is occurring. Select your answer from the drop-down menus.
The correct answers are A shows Smoke, it should be encoded as FU.
The correct answers are B shows Haze, it should be encoded as HZ.
The correct answers are C shows Blowing Sand, it should be encoded as BL SA.
The correct answers are D shows Blowing Spray, it should be encoded as BL PY.